Refolding of lysozyme in hydrophobic interaction chromatography: Effects of hydrophobicity of adsorbent and salt concentration in mobile phase

On-line determination by small angle X-ray scattering of the shape of hen egg white lysozyme immediately following elution from a hydrophobic interaction chromatography column

This study documents the use of an integrated approach, involving on-line HIC interfaced with SAXS measurements, to monitor the conformational status of proteins immediately upon elution from a chromatographic column.

Kinetics of protein unfolding at interfaces

The conformation of protein molecules is determined by a balance of various forces, including van der Waals attraction, electrostatic interaction, hydrogen bonding, and conformational entropy. When protein molecules encounter an interface, they are often adsorbed on the interface. The conformation of an adsorbed protein molecule strongly depends on the interaction between the protein and the interface. Recent time-resolved investigations have revealed that protein conformation changes during the adsorption process due to the protein-protein interaction increasing with increasing interface coverage. External conditions also affect the protein conformation. This review considers recent dynamic observations of protein adsorption at various interfaces and their implications for the kinetics of protein unfolding at interfaces.